Finding the Fourth Proportional to 1,362.32, 1,878.80 and 1,082.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.32 : 1,878.80 = 1,082.12 : x
2. Step 2: Convert to fraction form
   1,362.32/1,878.80 = 1,082.12/x
3. Step 3: Cross multiply
   1,362.32x = 1,878.80 × 1,082.12
4. Step 4: Simplify right side
   1,362.32x = 2,033,087.06
5. Step 5: Solve for x
   x = 2,033,087.06/1,362.32
6. Step 6: Final answer
   x = 1,492.37